"In the absence of Marxism, there is now no critique being carried out of the capitalist enterprise, and it'll peel your skin off and peddle it back to you. It is doing that. Capitalism in principle is not, I think, a bad thing, but it requires endlessly-exploitable natural resources. And since the exploration of space has been taken off the agenda, there is no endlessly-exploitable frontier. So capitalism is going to deal itself out of existence, but before it does that, you're gonna pay $50 for a latte, because inflation is going impoverish all of us before people get pissed off enough to realize that all of the last hundred years of economic progress was actually a shell game to create billionaires, while the great masses of people saw their standard of living eroded and destroyed. You don't have to take psilocybin to figure this stuff out."
January 1, 1970
https://en.wikiquote.org/wiki/Capitalism